Development of ultra wideband impulse radio technologies for future capsule endoscope enabling high-definition movie capturing

在本项目中，我们研究了人体内外之间的高速无线通信，以实现人体内的高清实时电影拍摄。具体而言，超宽带脉冲无线电（UWB-IR）信号的传输特性占用的带宽为7。5GHz的3。1GHz到10. 6 GHz通过人造体模或猪肉等相关技术进行了研究。在整个项目中，我们取得了以下成果：1）来自发射天线的16 dB/MHz辐射功率增强，其基于部署光学2x2开关的光学信号处理，2）实现基于聚乙烯醇（PVA）的仿真人体组织的相对电导率和相对介电常数的人造体模，3）1Gbit/s的超宽带红外线通过人造人体模型和2cm厚的猪肉的传输演示，4）通过修改用于产生超宽带红外信号的光脉冲源产生4Gbit/s的超宽带红外信号

In this project, we investigated high-speed wireless communications between inside and outside of human body to enable high-definition real-time movie capturing inside a human body. In concrete, transmission characteristics of ultra wideband impulse radio(UWB-IR) signals occupying bandwidth of 7. 5GHz from 3. 1GHz to 10. 6GHz through artificial phantom or swine meat and related technologies were studied. Throughout the project, we obtained the following outcomes ; 1) 16dB/MHz radiation power enhancement from transmitting antenna based on optical signal processing deploying an optical 2x2 switch, 2) implementation of poly-vinyl-alcohol(PVA)-based artificial phantom emulating relative conductance and relative permittivity of human tissues, 3) demonstration of 1Gbit/s UWB-IR transmission through the artificial phantoms and swine meats with thickness of 2cm, 4) 4Gbit/s UWB-IR signal generation by modifying optical pulse source used to generate UWB-IR signals